Barry Nelson, a senior policy analyst with the Natural
Resources Defense Council, a nonprofit environmental advocacy group, discussed
the status and future of California’s water supply during
a talk Nov. 16 at the Commonwealth Club.
In "California Water in the 21st Century," Nelson,
co-director of the NRDC’s Western Water project
and executive director of the Save San Francisco Bay Association,
outlined for about 20 attendees what he sees as the next emerging
era.
“The lessons we are learning in California
are important, because Western water conflicts are spreading
not only around the
country, but around the world,” Nelson said. He quoted Ismail
Serageldin, former vice president of the World Bank, who said, “The
next world war will be over water.”
Today, three new factors are affecting California’s water:
• We now have more tools to meet our water needs than we
had 150 years ago.
• We are becoming more aware of the human benefits of environmental
restoration.
• Economics is pointing to new solutions.
More tools in the toolbox
It hasn’t been that long since building dams
was considered cutting-edge technology. The engineering feat
of Hoover Dam generated
excitement then that now rivals the iPod. But technological innovation
has created a host of better water supply tools: desalination,
wastewater recycling, groundwater cleanup, low-flow showerheads,
waterless urinals, irrigation systems driven by satellite data
and controlled by pager systems that know not to irrigate in
the rain.
“In comparison with these tools, dams simply don’t
compete,” Nelson said.
For example, despite the tremendous growth in Los Angeles during
the past 20 years (about 1 million people), the city essentially
uses the same amount of water that it used in 1985. Technological
innovation made this possible, and we’re just touching
the potential, Nelson said.
Restoration isn’t just for fish
Opponents of environmental protection say that we need to prioritize “people
over fish,” but restoring ecosystems has had far-reaching
human benefits. Case in point: the San Joaquin River.
California’s second-longest river is dry
for about 60 miles upstream from the Delta. “We’re putting
a great deal of effort into restoring that river,” Nelson
said. “Support
for restoration has been growing dramatically in recent years
as a result of the ‘human’ benefits of restoration.”
Two obvious benefits are (1) restoring flows to the San Joaquin
River will be good for struggling salmon runs and (2) this, in
turn, will benefit not only the Delta’s health, but fisheries
that operate there.
Less obvious, but still important, benefits include:
• Recharged groundwater aquifers that are vastly overdrafted
in parts of the Central Valley.
• Improved water quality, which will benefit farmers who
are lower on the river and the Delta.
• Improved dissolved oxygen and community development benefits
for Stockton.
• Improved lot for salmon fishermen on the North Coast.
• Improved drinking water quality for Southern California
and the Bay Area “for more than 20 million Californians who
drink water from the Delta and for whom Sierra snowmelt seems tastier
than agricultural drainage,” Nelson said.
“Restoring the San Joaquin River is not prioritizing fish
over people,” he said. “It offers benefits from one
end of the state to the other. It is not obvious that restoring
salmon in Fresno improves drinking water quality in San Diego and
creates jobs in Eureka. But it’s true.”
California has embarked on designing integrated solutions that
restore the ecosystem and provide cleaner and more reliable water
supplies much cheaper than the old, damaging solutions of the past.
The next challenge
During
the past century, California has invested tens of billions of
dollars into its water infrastructure of dams and canals,
but the largest reservoir in the state is still the Sierra snowpack.
Nelson said that climate change threatens to eliminate much of
that storage as we see more rain and less snow in the coming
seasons.
(See BC Exclusive, ‘A Delicate Balance’)
“This has the potential to cause more winter flooding and
more summer shortages,” Nelson said, “which will
significantly reduce the water supply from our massive existing
water system.”
Yet another effect of climate change is rising sea levels. A three-
to six-foot increase would be a disaster for 1,000 square miles
of farmland and communities that lie behind shaky Delta levees,
he said, as well as being catastrophic for water supplies in the
Delta.
These are not just theoretical effects, Nelson said: The West
is already seeing the loss of snowpack as temperatures rise. In
the past century, sea level at the Golden Gate Bridge has risen
by more than six inches.
“These factors suggest that as far as California water policy
is concerned, the environmental era may be coming to an end,” Nelson
said. “And it’s not over because we won, nor because
we have lost, but because increasingly the right solutions are
not just environmental solutions. Smart solutions work best for
the environment, public health and a wide range of human needs,
including those of the California economy.”
Every era in California’s water history,
he said, tackles the challenges with their values, their understanding
of those
challenges, and the tools at hand. This new approach is captured
best by the Bay Area’s Paul Hawken (author of Growing
A Business), who said: “Good management is the art of making
problems so interesting and their solutions so constructive,
that everyone wants to get to work and deal with them.”
The potential future of water in California awaits those good
ideas and those willing to seize the opportunities ahead.